package mirage-clock-freestanding

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mirage-clock-freestanding
- Mclock
- Pclock

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POSIX clock for MirageOS using paravirtual interfaces

Clock counting time since the Unix epoch. Subject to adjustment by e.g. NTP.

include Mirage_clock.PCLOCK

val now_d_ps : unit -> int * int64

now_d_ps () is (d, ps) representing the POSIX time occurring at d * 86'400e12 + ps POSIX picoseconds from the epoch 1970-01-01 00:00:00 UTC. ps is in the range [0;86_399_999_999_999_999L].

val current_tz_offset_s : unit -> int option

current_tz_offset_s () is the clock's current local time zone offset to UTC in seconds, if known. This is the duration local time - UTC time in seconds.

val period_d_ps : unit -> (int * int64) option

period_d_ps () is Some (d, ps) representing the clock's picosecond period d * 86'400e12 + ps, if known. ps is in the range [0;86_399_999_999_999_999L].